Move remaining non-test, non-Chrome-specific Prefs code to base/prefs/.

chrome/browser/policy/policy_statistics_collector.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "chrome/browser/policy/policy_statistics_collector.h"
 
 #include <algorithm>
 #include <string>
 
 #include "base/bind.h"
 #include "base/location.h"
 #include "base/metrics/histogram.h"
+#include "base/prefs/pref_registry_simple.h"
+#include "base/prefs/pref_service.h"
 #include "base/task_runner.h"
 #include "chrome/browser/policy/policy_service.h"
-#include "chrome/browser/prefs/pref_registry_simple.h"
-#include "chrome/browser/prefs/pref_service.h"
 #include "chrome/common/pref_names.h"
 #include "policy/policy_constants.h"
 
 namespace policy {
 
 const int PolicyStatisticsCollector::kStatisticsUpdateRate =
     24 * 60 * 60 * 1000;  // 24 hours.
 
 PolicyStatisticsCollector::PolicyStatisticsCollector(
     PolicyService* policy_service,
@@ skipping 65 matching lines @@
 }
 
 void PolicyStatisticsCollector::ScheduleUpdate(base::TimeDelta delay) {
   update_callback_.Reset(base::Bind(
       &PolicyStatisticsCollector::CollectStatistics,
       base::Unretained(this)));
   task_runner_->PostDelayedTask(FROM_HERE, update_callback_.callback(), delay);
 }
 
 }  // namespace policy